The ________ consists of three layers of cells: the endoderm, the mesoderm, and the ectoderm.
A. fetus
B. embryo
C. trophoblast
D. blastocyst
Answer: B
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An apparent "anxious attachment" in the Strange Situation means the same thing for Japanese infants as it does for American infants
a. True b. False Indicate whether the statement is true or false
Which of the following is NOT one of the dyssomnias?
a. night terrors b. insomnia c. narcolepsy d. hypersomnia
In a certain box-and-whisker plot, the left hand (or lower) whisker is longer than the right hand (or upper) whisker. Therefore, the distribution is probably
a. bimodal b. normal c. positively skewed d. negatively skewed
The International Olympics Committee first established rules disqualifying competitors who failed or who refused to take drug tests in
A. 1936. B. 1968 C. 1980. D. 1992.